Non-Audiophile Audiophile question!

I need to know which speakers are the best to use when you position them behind you. In other words I'm not setting up any home-theater, but simply trying to figure out what kind of speakers are the best to go for such quest of setting up 2-ch stereo with rear speakers. It is my home-office situation which is awkwardly spaced and there are LOTS of monitors around me so I'm guessing I should look for near-field speakers. No issues with active speakers as well. 

Please recommend!